干旱区生态环境知识资源中心(Arid): Dynamics of soil respiration in Horqin semi-fixed dune and meadow wetland as a function of precipitation, temperature, and drought

Arid

DOI	10.1016/j.catena.2023.107612
	Dynamics of soil respiration in Horqin semi-fixed dune and meadow wetland as a function of precipitation, temperature, and drought
	Liu, Tingxi; Wang, Xueqin; Li, Mingyang; Li, Dongfang; Duan, Limin; Tong, Xin; Wang, Guanli
通讯作者	Liu, TX
来源期刊	CATENA
ISSN	0341-8162
EISSN	1872-6887
出版年	2024
卷号	235
英文摘要	Carbon emissions from soil respiration (Rs) in arid and semi-arid regions play a crucial role in the global carbon cycle and are strongly regulated by hydrothermal factors. In this study, we examined the seasonal (May to November) and diurnal dynamics of Rs in two typical ecosystems, Artemisia halodendron communities in semi fixed dunes (SA) and Phragmites communis communities in meadow wetlands (WP). Additionally, we investigated their responses to natural precipitation, high and low temperatures, and drought in the semi-arid Horqin Sandy Land in northern China. The results showed that the seasonal variation of Rs in SA and WP was unimodal, and peaked in humid August and dry July, respectively. Soil temperature, soil moisture and leaf area index (Ts, Ms&LAI) ternary model and Ts&Ms binary model can well simulate the Rs seasonal changes in SA and WP, respectively. It is more appropriate to use a scheme that distinguishes between pre-and post-rain conditions when simulating Rs during the growing season. Diurnal Rs generally increased with increasing temperature. However, Rs inhibition may occur under high or low temperatures and drought. The different responses of Rs in SA and WP to precipitation depend primarily on soil texture and moisture status. Incorporating several factors into carbon cycle models, including ecosystem type, vegetation growth, and precipitation, can improve the simulation and prediction of carbon emissions in arid and semi-arid regions.
英文关键词	Dune -meadow alternating region Carbon emission Temperature Rainfall
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:001125340900001
WOS关键词	CO2 EFFLUX ; ENVIRONMENTAL CONTROLS ; SEASONAL-VARIATIONS ; WATER AVAILABILITY ; TALLGRASS PRAIRIE ; SANDY LAND ; CARBON ; DEPENDENCE ; RESPONSES ; MOISTURE
WOS类目	Geosciences, Multidisciplinary ; Soil Science ; Water Resources
WOS研究方向	Geology ; Agriculture ; Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/403123
推荐引用方式 GB/T 7714	Liu, Tingxi,Wang, Xueqin,Li, Mingyang,et al. Dynamics of soil respiration in Horqin semi-fixed dune and meadow wetland as a function of precipitation, temperature, and drought[J],2024,235.
APA	Liu, Tingxi.,Wang, Xueqin.,Li, Mingyang.,Li, Dongfang.,Duan, Limin.,...&Wang, Guanli.(2024).Dynamics of soil respiration in Horqin semi-fixed dune and meadow wetland as a function of precipitation, temperature, and drought.CATENA,235.
MLA	Liu, Tingxi,et al."Dynamics of soil respiration in Horqin semi-fixed dune and meadow wetland as a function of precipitation, temperature, and drought".CATENA 235(2024).